Lewiston Road over Grass Valley Creek
Fair Condition61 years old330 vehicles/day
Location
| State | California |
| County | Trinity |
| Location | 1.4 Mi North Of SR 299 |
| Carries | Lewiston Road |
| Crosses | Grass Valley Creek |
| Coordinates | 40.68647, -122.86136 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 34.1 ft (10.4 m) |
| Max Span | 31.8 ft (9.7 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 101.9 sq m |
| Main Spans | 1 |
| Year Built | 1965 (reconstructed 1987) |
Traffic
| Avg Daily Traffic | 330 (2009) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 05C0035 |